EP1828628B1 - Ball joint, preferably for use in vehicles - Google Patents

Ball joint, preferably for use in vehicles Download PDF

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Publication number
EP1828628B1
EP1828628B1 EP05821593A EP05821593A EP1828628B1 EP 1828628 B1 EP1828628 B1 EP 1828628B1 EP 05821593 A EP05821593 A EP 05821593A EP 05821593 A EP05821593 A EP 05821593A EP 1828628 B1 EP1828628 B1 EP 1828628B1
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EP
European Patent Office
Prior art keywords
flange
support ring
ball
profile body
sealing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP05821593A
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German (de)
French (fr)
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EP1828628A1 (en
Inventor
Frank Budde
Markus THÖLKING
Olaf Abels
Werner DÜSING
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ZF Friedrichshafen AG
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ZF Friedrichshafen AG
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Publication of EP1828628A1 publication Critical patent/EP1828628A1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/0666—Sealing means between the socket and the inner member shaft
    • F16C11/0671—Sealing means between the socket and the inner member shaft allowing operative relative movement of joint parts due to flexing of the sealing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J3/00—Diaphragms; Bellows; Bellows pistons
    • F16J3/04—Bellows
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J3/00—Diaphragms; Bellows; Bellows pistons
    • F16J3/04—Bellows
    • F16J3/041—Non-metallic bellows
    • F16J3/042—Fastening details
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/32—Articulated members
    • Y10T403/32606—Pivoted
    • Y10T403/32631—Universal ball and socket
    • Y10T403/32729—Externally packed

Definitions

  • the invention relates to a ball joint, preferably for use in vehicles, in particular in the area of the chassis of motor vehicles, with a joint opening having ball joint housing, arranged in the ball joint housing, extending through the joint opening, a shank having ball pin, with a on the Shaft of the ball stud arranged, a radially extending flange having support ring and a sealing element which is arranged between the support ring and an adjacent component, wherein the flange (13) of the support ring (5) and / or in the Flanschübergangs Scheme (14), the connection between the flange (13) and an axial extension region (12) of the support ring (5), a profile body (15), which is materially connected to the support ring (5) and is provided with at least one sealing segment (16), is arranged in at least one profile section via a sealing segment (16) on the shaft (10) of the ball peg (1) and / or on a connection component (11).
  • the JP 11-063245 discloses a ball joint for motor vehicles which has a sealing sleeve made of an elastically deformable material between the housing of the ball joint and a ball pin carrying the ball joint.
  • Ball joints known for motor vehicles which has a sealing sleeve made of an elastically deformable material between the housing of the ball joint and a ball pin carrying the ball joint. Between the bearing surface of the gasket and the ball stud, a ball-stud adhered to the support ring is inserted, which is in a form-fitting engagement with the bearing surface of the gasket.
  • the seal in the region of the support ring takes place in both mentioned solutions by the support ring is provided with a coating of an elastic material.
  • the JP 02 199317 shows a ball joint in which for sealing against the ball pin also a support ring is used, similar to the two aforementioned documents.
  • a support ring is used to support the sealing effect of the radial part of the flange.
  • the flange is divided into four equal segments, but the four segments are interrupted.
  • the effect of the folded flanges in the direction of the connection component is thus interrupted in some areas.
  • the folded as well as the un-folded part of the flanges is straight and shows in the installed state radially at right angles away from the ball stud.
  • a ball joint which consists essentially of a ball stud and a ball socket for holding the head of the ball stud with a bearing inserted therebetween.
  • the ball joint has a retainer ring including a cylindrical part attached to an outer peripheral surface of the shaft of the ball stud and a flange protruding from one end of the cylindrical part of the retainer ring and coming into close contact with a fixing bead of a sleeve ,
  • the region in which the retaining ring is attached to the shank of the ball stud is filled with a sealing agent which penetrates as liquid in recesses in this area.
  • the invention has for its object to further develop such a ball joint or to improve its sealing effect that its functionality is maintained regardless of the specific design of the joint over relatively long periods without being adversely affected by corrosion phenomena in the ball stud.
  • the object is achieved on a ball joint of the type described in that on the flange of the support ring and / or in the flange transition region, which establishes the connection between the flange and an axial extension region of the support ring, a cohesively connected to the support ring, provided with at least one sealing segment Profile body is arranged, which rests in at least one profile section via a sealing segment on the shaft of the ball stud and / or on a connection component.
  • the flange of the support ring on at least one the sealing effect of the profile body reinforcing formation.
  • the invention is associated with the advantage that a reliable sealing effect is achieved on the basis of the predetermined positioning of the flange or flange transition region and sealing segment relative to one another and the properties of the at least one sealing segment that are matched to the application.
  • the integral connection between the flange transition region and the profile body rests in one or more of its profile sections via at least one sealing segment on the shaft of the ball stud and / or on the connection component.
  • the profile body with the flange and the flange transition region of the support ring can be materially connected and abutment via sealing segments on the shaft of the ball stud and / or on the connection component.
  • the profile body on an adjacent sealing segments connecting base web can be influenced.
  • a permanent connection of the profile body with the flange and / or the flange transition region of the support ring can be carried out appropriately by vulcanization, gluing or otherwise by a suitable adhesive bond.
  • the projections of the flange of the support ring directed towards the connection component bear a sealing segment of the profile body.
  • the profiled bodies connected in a materially connected manner to the flange or the flange transition region of the support ring are preferably made of an elastomer or a thermoplastic elastomer (TPE). Furthermore, these are also Hard foams, such as PU foam, in particular depending on the specific application of the ball joint suitable.
  • the subject of this invention is further directed to a motor vehicle in which the claimed ball joints are used, preferably in or on components of the chassis of the motor vehicle.
  • FIG. 1 The articulated connection shown schematically is a ball joint known per se to a person skilled in the art.
  • the representation of the structure of the ball joint can therefore be limited to the most important elements.
  • the ball joint consists essentially of a ball stud 1, a bearing shell 2 and a housing 3, the ball stud 1 and bearing shell. 2 at least partially encloses.
  • the sealing of the ball joint in the transition region from the housing 3 to the ball stud 1 is effected by a sealing bellows 4, which is held in the sealing position by means of the support ring 5, the round clamping ring 6 and the flat clamping ring 7 and allows a relative position change of the ball stud 1 to the housing 3.
  • the housing 3 in turn is made in two parts and comprises a housing base 8 and a closure cover 9, which closes the housing 3 on the side facing away from the ball stud 1 after insertion of the ball stud 1 in the housing base body 8.
  • the ball stud 1 has a conically extending shank 10, which is non-positively connected to a connection component 11 and carries the support ring 5, which in turn from a, applied to the shank 10 of the ball stud 1 axial extension portion 12, extending to the axial extension portion 12 at an angle flange 13 and an extension region 12 and flange 13 connecting flange transition region 14 is formed.
  • flange transition region 14 and the flange 13 is composed of an elastomer, composed of profile sections profile body 15 is connected by vulcanization, which has a sealing segment 16 and a base web 17 and sealingly abuts on the sealing member 16 on the connection member 11.
  • the sealing segment 16 abut the shaft 10 of the ball stud 1.
  • a ball pin near molding 18 is provided, on which the sealing segment 16 is arranged, which is particularly in Fig. 2 becomes clear.
  • sealing segment 16 and base web 17 profile body 15 are given to the respective flange portion of the support ring 5, on the basis of a reliable ball-pin close sealing function of the sealing segment 16 is achieved.
  • the profile body 15 has two sealing segments 16, which are connected by the base web 17.
  • a further formation 19 is provided, each of which a sealing segment 16 is assigned, so that hereby based on the given redundancy particularly reliable seal can be created.
  • sealing segment 16 and base web 17 are made such that the profile body 15 is formed layer-like and its profiling substantially over one or more formations 18, 19 in the flange 13 or flange transition area 14 receives
  • the flange transition region 14 itself may be designed as relevant for the sealing function molding 18, so that optionally on Further formations in the region of the flange 13 of the support ring 5 can be dispensed with.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Sealing Devices (AREA)
  • Diaphragms And Bellows (AREA)
  • Joints Allowing Movement (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

A ball and socket joint is provided preferably for use in vehicles and especially in the area of the chassis of motor vehicles. The joint has a ball and socket joint housing having a joint opening, with a ball pivot, which is arranged in the ball and socket joint housing, extends through the joint opening and has a shaft. A support ring is arranged on the shaft of the ball pivot and has a radially extending flange. A sealing element is arranged between the support ring as well as an adjoining component formed by a profiled body (15), which is connected to the support ring (5) in substance, is provided with at least one sealing segment (16) and is in contact with the shaft (10) of the ball pivot (1) and/or with a connection component (11) in at least one profiled section via a sealing segment (16). The profiled body is arranged at the flange (13) of the support ring (5) and/or in the flange transition area (14), which establishes the connection between the flange (13) and an axial extension area (12) of the support ring (5).

Description

Die Erfindung betrifft ein Kugelgelenk, vorzugsweise für einen Einsatz in Fahrzeugen, insbesondere im Bereich des Fahrwerkes von Kraftfahrzeugen, mit einem, eine Gelenköffnung aufweisenden Kugelgelenkgehäuse, mit einem im Kugelgelenkgehäuse angeordneten, sich durch die Gelenköffnung erstreckenden, einen Schaft aufweisenden Kugelzapfen, mit einem auf dem Schaft des Kugelzapfens angeordneten, einen radial verlaufenden Flansch aufweisenden Stützring und einem Dichtelement, das zwischen dem Stützring sowie einem angrenzenden Bauteil angeordnet ist, wobei das am Flansch (13) des Stützringes (5) und/oder im Flanschübergangsbereich (14), der die Verbindung zwischen dem Flansch (13) und einem axialen Erstreckungsbereich (12) des Stützringes (5) herstellt, ein mit dem Stützring (5) stoffschlüssig verbundener, mit mindestens einem Dichtsegment (16) versehener Profilkörper (15) angeordnet ist, der in zumindest einem Profilabschnitt über ein Dichtsegment (16) am Schaft (10) des Kugelzapfens (1) und/oder an einem Anschlussbauteil (11) anliegt.The invention relates to a ball joint, preferably for use in vehicles, in particular in the area of the chassis of motor vehicles, with a joint opening having ball joint housing, arranged in the ball joint housing, extending through the joint opening, a shank having ball pin, with a on the Shaft of the ball stud arranged, a radially extending flange having support ring and a sealing element which is arranged between the support ring and an adjacent component, wherein the flange (13) of the support ring (5) and / or in the Flanschübergangsbereich (14), the connection between the flange (13) and an axial extension region (12) of the support ring (5), a profile body (15), which is materially connected to the support ring (5) and is provided with at least one sealing segment (16), is arranged in at least one profile section via a sealing segment (16) on the shaft (10) of the ball peg (1) and / or on a connection component (11).

Bei Kugelgelenken besteht regelmäßig die Notwendigkeit, die Relativbewegung der Gelenkteile zueinander ohne Funktionseinschränkungen zumindest über eine vorgegebene Einsatzdauer für den betreffenden Kugelgelenktyp zu gewährleisten. Dabei muss eine hinreichende Abdichtung gegen äußere Einflüsse, insbesondere gegen das Eindringen von Fremdkörpern und Feuchtigkeit, gegeben sein. Hierfür sind auf dem Kugelzapfen des Kugelgelenkes angeordnete Stützringe im Einsatz, auf denen das zapfenseitige Dichtlabyrinth eines Dichtungsbalges dichtend fixiert werden kann.In ball joints there is regularly the need, the relative movement of the joint parts to each other at least without functional limitations To ensure a predetermined period of use for the relevant ball joint type. In this case, a sufficient seal against external influences, in particular against the ingress of foreign bodies and moisture must be given. For this purpose, arranged on the ball stud of the ball joint support rings in use, on which the pin-side sealing labyrinth of a sealing bellows can be sealingly fixed.

Die JP 11-063245 offenbart ein Kugelgelenk für Kraftfahrzeuge welches zwischen dem Gehäuse des Kugelgelenkes und einem die Gelenkkugel tragenden Kugelzapfen eine Dichtungsmanschette aus einem elastisch verformbaren Werkstoff aufweist.The JP 11-063245 discloses a ball joint for motor vehicles which has a sealing sleeve made of an elastically deformable material between the housing of the ball joint and a ball pin carrying the ball joint.

In diesem Zusammenhang sind aus der JP 11-063245 und aus der DE-OS 37 05 847 Kugelgelenke für Kraftfahrzeuge bekannt, welche zwischen dem Gehäuse des Kugelgelenkes und einem die Gelenkkugel tragenden Kugelzapfen eine Dichtungsmanschette aus einem elastisch verformbaren Werkstoff aufweist. Zwischen der Lagerfläche der Dichtungsmanschette und dem Kugelzapfen ist ein auf dem Kugelzapfen haftend angeordneter Stützring eingesetzt, der mit der Lagerfläche der Dichtungsmanschette formschlüssig im Eingriff steht.In this context are from the JP 11-063245 and from the DE-OS 37 05 847 Ball joints known for motor vehicles, which has a sealing sleeve made of an elastically deformable material between the housing of the ball joint and a ball pin carrying the ball joint. Between the bearing surface of the gasket and the ball stud, a ball-stud adhered to the support ring is inserted, which is in a form-fitting engagement with the bearing surface of the gasket.

Die Abdichtung im Bereich des Stützringes erfolgt bei beiden genannten Lösungen, indem der Stützring mit einer Beschichtung aus einem elastischen Werkstoff versehen ist.The seal in the region of the support ring takes place in both mentioned solutions by the support ring is provided with a coating of an elastic material.

Die JP 02 199317 zeigt ein Kugelgelenk bei dem zur Abdichtung gegenüber dem Kugelzapfen ebenfalls ein Stützring eingesetzt wird, ähnlich wie bei den beiden zuvor genannten Dokumenten. Zur Unterstützung der Dichtwirkung ist der radiale Teil des Flansches derart ausgebildet, dass der Flansch nach Art einer Faltung umgelegt ist. Der Flansch ist in vier gleichen Segmenten umgelegt, wobei die vier Segmente allerdings unterbrochen sind. Die in Richtung Anschlussbauteil gehende Wirkung der umgelegten Flansche ist somit in Teilbereichen unterbrochen. Der umgelegte als auch der nicht umgelegte Teil der Flansche ist gerade ausgebildet und zeigt im Einbauzustand radial rechtwinklig vom Kugelzapfen weg.The JP 02 199317 shows a ball joint in which for sealing against the ball pin also a support ring is used, similar to the two aforementioned documents. To support the sealing effect of the radial part of the flange is formed such that the flange according to Art folded is folded. The flange is divided into four equal segments, but the four segments are interrupted. The effect of the folded flanges in the direction of the connection component is thus interrupted in some areas. The folded as well as the un-folded part of the flanges is straight and shows in the installed state radially at right angles away from the ball stud.

Aus der DE 103 00 678 A1 ist weiterhin ein Kugelgelenk bekannt, das im Wesentlichen aus einem Kugelzapfen und einer Kugelpfanne zum Halten des Kopfes des Kugelzapfens mit einem dazwischen eingefügten Lager besteht. Des Weiteren verfügt das Kugelgelenk über einen Haltering, der ein zylindrisches Teil, das an einer Außenumfangsfläche des Schaftes des Kugelzapfens angebracht ist, und einen Flansch umfasst, der vom einem Ende des zylindrischen Teils des Halterings absteht und mit einem Befestigungswulst einer Muffe in engen Kontakt gelangt.From the DE 103 00 678 A1 Further, a ball joint is known, which consists essentially of a ball stud and a ball socket for holding the head of the ball stud with a bearing inserted therebetween. Further, the ball joint has a retainer ring including a cylindrical part attached to an outer peripheral surface of the shaft of the ball stud and a flange protruding from one end of the cylindrical part of the retainer ring and coming into close contact with a fixing bead of a sleeve ,

Im Rahmen dieser Lehre wird der Bereich, in welchem der Haltering an dem Schaft des Kugelzapfens angebracht ist, mit einem Dichtungsmittel gefüllt, das als Flüssigkeit in Ausnehmungen in diesem Bereich eindringt.Within the scope of this teaching, the region in which the retaining ring is attached to the shank of the ball stud is filled with a sealing agent which penetrates as liquid in recesses in this area.

Der Erfindung liegt die Aufgabe zugrunde, ein Kugelgelenk derart weiter zu entwickeln bzw. dessen Dichtwirkung zu verbessern, dass dessen Funktionsfähigkeit unabhängig von der konkreten Bauform des Gelenkes über vergleichsweise lange Zeiträume erhalten bleibt, ohne durch Korrosionserscheinungen im Bereich des Kugelzapfens negativ beeinflusst zu sein.The invention has for its object to further develop such a ball joint or to improve its sealing effect that its functionality is maintained regardless of the specific design of the joint over relatively long periods without being adversely affected by corrosion phenomena in the ball stud.

Erfindungsgemäß wird die Aufgabe an einem Kugelgelenk der beschriebenen Art dadurch gelöst, dass am Flansch des Stützringes und/oder im Flanschübergangsbereich, der die Verbindung zwischen dem Flansch und einem axialen Erstreckungsbereich des Stützringes herstellt, ein mit dem Stützring stoffschlüssig verbundener, mit mindestens einem Dichtsegment versehener Profilkörper angeordnet ist, der in zumindest einem Profilabschnitt über ein Dichtsegment am Schaft des Kugelzapfens und/oder an einem Anschlussbauteil anliegt. Gemäß der Erfindung weist der Flansch des Stützringes mindestens eine die Dichtwirkung des Profilkörpers verstärkende Ausformung auf.According to the invention the object is achieved on a ball joint of the type described in that on the flange of the support ring and / or in the flange transition region, which establishes the connection between the flange and an axial extension region of the support ring, a cohesively connected to the support ring, provided with at least one sealing segment Profile body is arranged, which rests in at least one profile section via a sealing segment on the shaft of the ball stud and / or on a connection component. According to the invention, the flange of the support ring on at least one the sealing effect of the profile body reinforcing formation.

Die Erfindung ist mit dem Vorteil verbunden, dass auf der Grundlage der vorgegebenen Positionierung von Flansch bzw. Flanschübergangsbereich und Dichtsegment relativ zueinander und der auf den Einsatzfall abgestimmten Eigenschaften des zumindest einen Dichtsegmentes eine zuverlässige Dichtwirkung erzielt wird.The invention is associated with the advantage that a reliable sealing effect is achieved on the basis of the predetermined positioning of the flange or flange transition region and sealing segment relative to one another and the properties of the at least one sealing segment that are matched to the application.

Zur Realisierung einer selektiv im kugelzapfennahen Bereich erforderlichen hohen Dichtwirkung besteht in Ausgestaltung der Erfindung die stoffschlüssige Verbindung zwischen dem Flanschübergangsbereich und dem Profilkörper. Der Profilkörper liegt dabei in einem oder mehreren seiner Profilabschnitte über zumindest ein Dichtsegment am Schaft des Kugelzapfens und/oder am Anschlussbauteil an.In order to realize a high sealing effect which is selectively required in the area close to the ball pin, in a refinement of the invention there is the integral connection between the flange transition region and the profile body. The profile body rests in one or more of its profile sections via at least one sealing segment on the shaft of the ball stud and / or on the connection component.

In Umsetzung definierter Dichtverhältnisse längs des Flansches des Stützringes kann der Profilkörper mit dem Flansch und dem Flanschübergangsbereich des Stützringes stoffschlüssig verbundenen sein und über Dichtsegmente am Schaft des Kugelzapfens und/oder am Anschlussbauteil anliegen.
In bevorzugter Ausgestaltung der Erfindung weist der Profilkörper einen benachbarte Dichtsegmente verbindenden Basissteg auf. Mit diesem kann das Auslenkungsverhalten der Dichtsegmente bei Montage des Kugelgelenkes in Abhängigkeit von der Gestaltung der Übergangszonen vom Basissteg zu den Dichtsegmenten und als Funktion der Dicke des Basissteges gezielt beeinflusst werden.In implementation of defined sealing conditions along the flange of the support ring, the profile body with the flange and the flange transition region of the support ring can be materially connected and abutment via sealing segments on the shaft of the ball stud and / or on the connection component.
In a preferred embodiment of the invention, the profile body on an adjacent sealing segments connecting base web. With this, that can Deflection behavior of the sealing segments during assembly of the ball joint depending on the design of the transition zones from the base bar to the sealing segments and as a function of the thickness of the base bar can be influenced.

Eine dauerhafte Verbindung der Profilkörper mit dem Flansch und/oder dem Flanschübergangsbereich des Stützringes kann zweckmäßig durch Vulkanisation, Verkleben oder anderweitig durch eine geeignete Haftverbindung erfolgen.A permanent connection of the profile body with the flange and / or the flange transition region of the support ring can be carried out appropriately by vulcanization, gluing or otherwise by a suitable adhesive bond.

Auch besteht die Möglichkeit, zwischen benachbarten, auf das Anschlussbauteil gerichteten Ausformungen des Flansches des Stützringes ein Dichtsegment des Profilkörpers anzuordnen.It is also possible to arrange a sealing segment of the profile body between adjacent formations of the flange of the support ring directed at the connection component.

Alternativ oder in Ergänzung hierzu liegt es im Rahmen der Erfindung, dass die auf das Anschlussbauteil gerichteten Ausformungen des Flansches des Stützringes ein Dichtsegment des Profilkörpers tragen.Alternatively or in addition thereto, it is within the scope of the invention that the projections of the flange of the support ring directed towards the connection component bear a sealing segment of the profile body.

Werden die beiden vorgenannten Möglichkeiten in Kombination benutzt, so dass Ausformungen wie auch Zwischenräume zwischen den Ausformungen Dichtsegmente tragen, entsteht ein sehr effizientes und hinreichend redundantes Dichtsystem.If the two aforementioned possibilities are used in combination, so that formations as well as gaps between the formations carry sealing segments, a very efficient and sufficiently redundant sealing system results.

Die stoffschlüssig mit dem Flansch oder dem Flanschübergangsbereich des Stützringes verbundenen Profilkörper bestehen bevorzugt aus einem Elastomer oder einem thermoplastischen Elastomer (TPE). Weiterhin sind hierfür auch Hartschäume, wie etwa PU-Schaum, insbesondere in Abhängigkeit vom konkreten Einsatzbereich des Kugelgelenkes geeignet.The profiled bodies connected in a materially connected manner to the flange or the flange transition region of the support ring are preferably made of an elastomer or a thermoplastic elastomer (TPE). Furthermore, these are also Hard foams, such as PU foam, in particular depending on the specific application of the ball joint suitable.

Der Gegenstand dieser Erfindung ist des Weiteren auf ein Kraftfahrzeug gerichtet, in dem die beanspruchten Kugelgelenke zum Einsatz kommen, dabei vorzugsweise in oder an Komponenten des Fahrwerkes des Kraftfahrzeuges.The subject of this invention is further directed to a motor vehicle in which the claimed ball joints are used, preferably in or on components of the chassis of the motor vehicle.

Die Erfindung soll nachfolgend anhand eines Ausführungsbeispieles und zugehöriger Zeichnungen näher erläutert werden.The invention will be explained in more detail with reference to an embodiment and associated drawings.

Es zeigenShow it

Fig. 1Fig. 1
eine Übersichtsdarstellung einer als Kugelgelenk ausgeführten Gelenkverbindung mit erfindungsgemäßer Verbindung von Teilen eines Stützringes mit einem Profilkörper,an overview of a joint executed as a ball joint with inventive compound of parts of a support ring with a profile body,
Fig. 2Fig. 2
eine Darstellung der Einzelheit X gemäß Fig. 1 mit im eingebauten und damit vorgespannten Zustand befindlichen Profilkörper unda representation of the detail X according to Fig. 1 with in the installed and thus preloaded state profile body and
Fig. 3 bis 5Fig. 3 to 5
Darstellungen der Einzelheit X gemäß Fig. 1 mit gegenüber Fig. 2 verändertem Profilkörper.Representations of the detail X according to Fig. 1 with opposite Fig. 2 modified profile body.

Bei der in Fig. 1 schematisch dargestellten Gelenkverbindung handelt es sich um ein dem Fachmann an sich bekanntes Kugelgelenk. Die Darstellung des Aufbaus des Kugelgelenkes kann sich daher auf die wichtigsten Elemente beschränken.At the in Fig. 1 The articulated connection shown schematically is a ball joint known per se to a person skilled in the art. The representation of the structure of the ball joint can therefore be limited to the most important elements.

Das Kugelgelenk besteht im Wesentlichen aus einem Kugelzapfen 1, einer Lagerschale 2 und einem Gehäuse 3, das Kugelzapfen 1 und Lagerschale 2 zumindest teilweise umschließt. Die Abdichtung des Kugelgelenkes im Übergangsbereich vom Gehäuse 3 zum Kugelzapfen 1 erfolgt durch einen Dichtungsbalg 4, der mittels Stützring 5, Rundspannring 6 und Flachspannring 7 in Dichtposition gehalten wird und eine Relativlageänderung des Kugelzapfens 1 zum Gehäuse 3 ermöglicht.The ball joint consists essentially of a ball stud 1, a bearing shell 2 and a housing 3, the ball stud 1 and bearing shell. 2 at least partially encloses. The sealing of the ball joint in the transition region from the housing 3 to the ball stud 1 is effected by a sealing bellows 4, which is held in the sealing position by means of the support ring 5, the round clamping ring 6 and the flat clamping ring 7 and allows a relative position change of the ball stud 1 to the housing 3.

Das Gehäuse 3 seinerseits ist zweiteilig ausgeführt und umfasst einen Gehäusegrundkörper 8 und einen Verschlussdeckel 9, der nach Einsetzen des Kugelzapfens 1 in den Gehäusegrundkörper 8 das Gehäuse 3 auf der dem Kugelzapfen 1 abgewandten Seite verschließt.The housing 3 in turn is made in two parts and comprises a housing base 8 and a closure cover 9, which closes the housing 3 on the side facing away from the ball stud 1 after insertion of the ball stud 1 in the housing base body 8.

Der Kugelzapfen 1 verfügt über einen konisch verlaufenden Schaft 10, der kraftschlüssig mit einem Anschlussbauteil 11 verbunden ist und den Stützring 5 trägt, der seinerseits aus einem, am Schaft 10 des Kugelzapfens 1 anliegenden axialen Erstreckungsbereich 12, einen zum axialen Erstreckungsbereich 12 im Winkel verlaufenden Flansch 13 und einem Erstreckungsbereich 12 und Flansch 13 verbindenden Flanschübergangsbereich 14 gebildet ist.The ball stud 1 has a conically extending shank 10, which is non-positively connected to a connection component 11 and carries the support ring 5, which in turn from a, applied to the shank 10 of the ball stud 1 axial extension portion 12, extending to the axial extension portion 12 at an angle flange 13 and an extension region 12 and flange 13 connecting flange transition region 14 is formed.

Mit dem Flanschübergangsbereich 14 und dem Flansch 13 ist ein aus einem Elastomer bestehender, aus Profilabschnitten zusammengesetzter Profilkörper 15 durch Vulkanisation verbunden, der ein Dichtsegment 16 und einen Basissteg 17 aufweist und über das Dichtsegment 16 am Anschlussbauteil 11 dichtend anliegt. Alternativ oder auch ergänzend hierzu kann das Dichtsegment 16 am Schaft 10 des Kugelzapfens 1 anliegen.With the flange transition region 14 and the flange 13 is composed of an elastomer, composed of profile sections profile body 15 is connected by vulcanization, which has a sealing segment 16 and a base web 17 and sealingly abuts on the sealing member 16 on the connection member 11. Alternatively or in addition to this, the sealing segment 16 abut the shaft 10 of the ball stud 1.

Zur Verstärkung der Dichtwirkung des Profilkörpers 15 ist im Flansch 13 des Stützringes 5 eine kugelzapfennahe Ausformung 18 vorgesehen, auf der das Dichtsegment 16 angeordnet ist, was insbesondere in Fig. 2 deutlich wird.To reinforce the sealing effect of the profile body 15 is in the flange 13 of the support ring 5, a ball pin near molding 18 is provided, on which the sealing segment 16 is arranged, which is particularly in Fig. 2 becomes clear.

Bei der dargestellten Ausführungsform ist eine sichere Verbindung des aus Dichtsegment 16 und Basissteg 17 gebildeten Profilkörpers 15 mit dem betreffenden Flanschabschnitt des Stützringes 5 gegeben, auf deren Grundlage eine zuverlässige kugelzapfennahe Dichtfunktion des Dichtsegmentes 16 erreicht wird.In the illustrated embodiment, a secure connection of the formed of sealing segment 16 and base web 17 profile body 15 is given to the respective flange portion of the support ring 5, on the basis of a reliable ball-pin close sealing function of the sealing segment 16 is achieved.

Gemäß der in Fig. 3 erfassten Dichtsituation zwischen dem Flansch 13 des Stützringes 5 und dem Anschlussbauteil 11 weist der Profilkörper 15 zwei Dichtsegmente 16 auf, die durch den Basissteg 17 verbunden sind. Im Flansch 13 des Stützringes 5 ist beabstandet zur kugelzapfennahen Ausformung 18 eine weitere Ausformung 19 vorgesehen, denen jeweils ein Dichtsegment 16 zugeordnet ist, so dass hiermit eine auf Grundlage der gegebenen Redundanz besonders zuverlässige Abdichtung geschaffen werden kann.According to the in Fig. 3 detected sealing situation between the flange 13 of the support ring 5 and the connection member 11, the profile body 15 has two sealing segments 16, which are connected by the base web 17. In the flange 13 of the support ring 5 is at a distance from the ball pin near formation 18, a further formation 19 is provided, each of which a sealing segment 16 is assigned, so that hereby based on the given redundancy particularly reliable seal can be created.

Weiterhin besteht die Möglichkeit, die Abdichtung im Bereich des Flansches 13 des Stützringes 5 durch ein Dichtsegment 16 zu realisieren, das im Bereich zwischen den Ausformungen 18 und 19 mit dem Flansch 13 des Stützringes 5 verbunden ist, wie in Fig. 4 dargestellt.Furthermore, it is possible to realize the seal in the region of the flange 13 of the support ring 5 by a sealing segment 16 which is connected in the region between the formations 18 and 19 with the flange 13 of the support ring 5, as in Fig. 4 shown.

Auch kann gemäß der Darstellung in Fig. 5 eine Angleichung von Dichtsegment 16 und Basissteg 17 derart erfolgen, dass der Profilkörper 15 schichtähnlich ausgebildet ist und seine Profilierung im Wesentlichen über eine oder mehrere Ausformungen 18, 19 im Flansch 13 oder Flanschübergangsbereich 14 erhältAlso, as shown in FIG Fig. 5 An approximation of sealing segment 16 and base web 17 are made such that the profile body 15 is formed layer-like and its profiling substantially over one or more formations 18, 19 in the flange 13 or flange transition area 14 receives

Unabhängig von der konkreten Gestaltung des Profilkörpers 15, wie sie beispielhaft in den Fig. 2 bis 5 erfasst ist, kann der Flanschübergangsbereich 14 selbst als für die Dichtfunktion relevante Ausformung 18 gestaltet sein, so dass gegebenenfalls auf weitere Ausformungen im Bereich des Flansches 13 des Stützringes 5 verzichtet werden kann.Regardless of the specific design of the profile body 15, as exemplified in the Fig. 2 to 5 is detected, the flange transition region 14 itself may be designed as relevant for the sealing function molding 18, so that optionally on Further formations in the region of the flange 13 of the support ring 5 can be dispensed with.

Mit der hier vorgestellten, nicht auf die Ausführungsbeispiele beschränkten Lösung, die im Wesentlichen auf die permanente Verbindung eines Stützringes mit einem oder mehreren Profilkörpern und die Auswahl geeigneter Dichtsegmente als Bestandteil des jeweiligen Profilkörpers zurückgeht, wird eine sehr zuverlässige und dauerhafte Abdichtung zwischen Dichtungsbalg, Stützring, Profilkörper und Anschlussbauteil erreicht.With the presented here, not limited to the embodiments solution that essentially goes back to the permanent connection of a support ring with one or more profile bodies and the selection of suitable sealing segments as part of the respective profile body, a very reliable and durable seal between sealing bellows, support ring, Profile body and connection component reached.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1 -1 -
Kugelzapfenball pin
2 -2 -
Lagerschalebearing shell
3 -3 -
Gehäusecasing
4 -4 -
Dichtungsbalgbellows
5 -5 -
Stützringsupport ring
6 -6 -
RundspannringRound tension ring
7 -7 -
FlachspannringFlat tension ring
8 -8th -
GehäusegrundkörperHousing body
9 -9 -
Verschlussdeckelcap
10 -10 -
Schaftshaft
11 -11 -
Anschlussbauteilconnection component
12 -12 -
axialer Erstreckungsbereichaxial extent range
13 -13 -
Flanschflange
14 -14 -
Flanschübergangsbereichflange transition
15 -15 -
Profilkörperprofile body
16 -16 -
Dichtsegmentsealing segment
17 -17 -
Basisstegbase web
18 -18 -
kugelzapfennahe Ausformungball-pin-shaped shaping
19 -19 -
weitere Ausformungfurther shaping

Claims (9)

  1. Ball joint, preferably for use in vehicles, in particular in the region of the chassis of motor vehicles, comprising a ball joint housing (3) with a joint opening, comprising a ball pin (1) that is disposed in the ball joint housing (3), extends through the joint opening and has a shank (10), comprising a support ring (5) that is disposed on the shank of the ball pin (1) and has a radially extending flange (13) as well as a sealing element (15) that is disposed between the support ring (5) and an adjoining component (11), wherein the on the flange (13) of the support ring (5) and/or in the flange transition region (14), which establishes the connection between the flange (13) and an axially extending region (12) of the support ring (5), a profile body (15) connected cohesively to the support ring (5) and provided with at least one sealing segment (16) is disposed, which in at least one profile portion rests via a sealing segment (16) against the shank (10) of the ball pin (1) and/or against a connecting component (11),
    characterized in that the flange (13) of the support ring (5) comprises at least one projection (18, 19) that boosts the sealing action of the profile body (15).
  2. Ball joint according to claim 1, characterized in that there is a cohesive connection between the flange transition region (14) and the profile body (15) and the profile body (15) in a profile portion rests via at least one sealing segment (16) against the shank (10) of the ball pin (1) and/or against the connecting component (11).
  3. Ball joint according to claim 1, characterized in that the profile body (15) is cohesively connected to the flange (13) and the flange transition region (14) of the support ring (5) and rests via sealing segments (16) against the shank (10) of the ball pin (1) and/or against the connecting component (11).
  4. Ball joint according to claim 2 or 3, characterized in that the profile body (15) comprises a basic web (17) that connects adjacent sealing segments (16).
  5. Ball joint according to claim 1, characterized in that the profile body (15) is connected by vulcanization, gluing or some other adhesive connection to the flange (13) and/or the flange transition region (14) of the support ring (5).
  6. Ball joint according to claim 1, characterized in that between adjacent projections (18, 19) of the flange (13) of the support ring (5) that are oriented towards the connecting component (11) a sealing segment (16) of the profile body (15) is received.
  7. Ball joint according to claim 1, characterized in that projections (18, 19) of the flange (13) of the support ring (5) that are oriented towards the connecting component (11) carry a sealing segment (16) of the profile body (15).
  8. Ball joint according to claim 1, characterized in that the profile body (15) is made of an elastomer, a thermoplastic elastomer (TPE) or a rigid foam, optionally a PU foam.
  9. Motor vehicle having chassis components comprising ball joints, characterized in that ball joints according to one of claims 1 to 8 are formed.
EP05821593A 2004-12-22 2005-12-21 Ball joint, preferably for use in vehicles Active EP1828628B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004063013A DE102004063013B4 (en) 2004-12-22 2004-12-22 Ball joint, preferably for use in vehicles
PCT/DE2005/002309 WO2006066562A1 (en) 2004-12-22 2005-12-21 Ball joint, preferably for use in vehicles

Publications (2)

Publication Number Publication Date
EP1828628A1 EP1828628A1 (en) 2007-09-05
EP1828628B1 true EP1828628B1 (en) 2009-12-02

Family

ID=36272306

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05821593A Active EP1828628B1 (en) 2004-12-22 2005-12-21 Ball joint, preferably for use in vehicles

Country Status (11)

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US (1) US20100025950A1 (en)
EP (1) EP1828628B1 (en)
JP (1) JP2008524531A (en)
KR (1) KR101319709B1 (en)
CN (1) CN100591931C (en)
AT (1) ATE450719T1 (en)
BR (1) BRPI0519717A2 (en)
DE (2) DE102004063013B4 (en)
MX (1) MX2007007674A (en)
WO (1) WO2006066562A1 (en)
ZA (1) ZA200705976B (en)

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DE102008043248A1 (en) 2008-10-29 2010-05-06 Zf Friedrichshafen Ag Flange ring for use in ball joint of motor vehicle, has ring surface, where ring is formed as component of static sealing between pin and connection component, so that edge section of sleeve gasket is tightly accommodated in ring
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Also Published As

Publication number Publication date
KR101319709B1 (en) 2013-10-17
JP2008524531A (en) 2008-07-10
ZA200705976B (en) 2009-03-25
EP1828628A1 (en) 2007-09-05
DE102004063013B4 (en) 2009-06-18
US20100025950A1 (en) 2010-02-04
KR20070092256A (en) 2007-09-12
CN101087962A (en) 2007-12-12
DE102004063013A1 (en) 2006-07-13
CN100591931C (en) 2010-02-24
BRPI0519717A2 (en) 2009-03-10
ATE450719T1 (en) 2009-12-15
MX2007007674A (en) 2007-08-22
WO2006066562A1 (en) 2006-06-29
DE502005008651D1 (en) 2010-01-14

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